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Anthropic CEO Dario Amodei and Microsoft published separate essays calling for a slowdown — not a pause — in frontier AI development, with Amodei urging external evaluators, government-supervised coordination among front…
Anthropic's Claude Mythos Preview, announced 7 April 2026, autonomously found zero-day vulnerabilities in every major operating system and web browser, and by 26 August its disclosure programme had reported 2,300 vulnera…
The Intercept obtained more than 400 pages of Pentagon contracts through a Freedom of Information Act lawsuit, revealing that Anthropic, Google, OpenAI, and xAI each signed deals worth up to $200 million in July 2025 to …
A tutorial by Rachel Goldstein demonstrates how to regression-test LLM prompts using promptfoo 0.122.2 in GitHub Actions, catching prompt and model regressions on every pull request. The setup includes a support-ticket t…
Shrijith Venkatramana, the developer behind LiveReview, explains how Constitutional AI methods can turn written principles into training signals for LLMs, reducing reliance on human preference labeling. The approach, for…
OpenAI will cut off Cursor's access to GPT and Codex models effective November 12, citing a change-of-control clause after SpaceX's roughly $60 billion all-stock acquisition of Cursor's parent Anysphere closed August 14.…
Anthropic's most expensive model, Fable 5, has seen spending plateau at about 11% of total spend on the company's tools more than two months after launch, while its smaller Opus 5 has already surpassed Fable in business …
Anthropic began watermarking text output from its Claude LLMs to comply with Article 50 of the EU AI Act, prompting public backlash and the emergence of watermark-removal tools on GitHub. John Gruber, co-creator of Markd…
Google, OpenAI, and Anthropic all charge exactly half their synchronous rate for batch API work, yet most cost forecasts price every token at the sync list rate, creating a 2× error on workloads that don't need real-time…
Anthropic has begun watermarking AI-generated text across all Claude models, including in the EU, using an imperceptible statistical token watermarking scheme rather than hidden Unicode or whitespace, according to a tech…
Anthropic's Claude Opus 5 produced anomalous, memory-influenced responses when prompted with the dangling input 'see the below —', according to a writer's experiment. The model generated personal details, including a bio…
MiniMax renamed its agent product Mavis in May 2026 and rebuilt it around Agent Teams, where a Leader, Worker, and Verifier split tasks, but the company's own engineering post admits this only pays off on long, verifiabl…
UniversalAI, a new open-source Python SDK, provides a unified interface for interacting with nine major LLM providers, including OpenAI, Anthropic, Gemini, and Ollama. The SDK supports async-first operations, streaming, …
1,122 employees of frontier AI companies, including chief scientists from OpenAI, Anthropic, Meta, and Google, issued a statement requesting U.S. government support for an international effort to develop technical and go…
Anthropic removed more than 80% of Claude Code's system prompt for its newest models, Opus 5 and Fable 5, and reported no measurable loss across internal coding evaluations, according to a July 24 disclosure by technical…
Anthropic launched Claude Opus 5, achieving an ECI of 159 and matching Fable 5 on SWE-ECI at 161, according to Epoch AI Research. Independent evaluations show Opus 5 outperforming Fable in coding and math tasks, with use…
Anthropic launched a major upgrade to Claude's voice mode, making Opus and Sonnet models available with live access to connected apps like Gmail, Slack, and Canva, positioning Claude as the only major AI assistant capabl…
A developer published a step-by-step guide to running Claude Code for free using alternative API endpoints from AgentRouter and IAMHC. The guide covers installation, configuration, and troubleshooting on multiple platfor…
Anthropic researchers introduced the Jacobian lens (J-lens), a method that reveals a sparse workspace of verbalizable concepts in language models carrying multi-hop reasoning and hidden cognition, distinct from automatic…
The U.S. government's June 2026 export restrictions on Anthropic's frontier AI models backfired, driving allies toward Chinese open-source alternatives and undermining the strategic goal of promoting the American AI stac…